There are two constituent brooklets of the Mirk Esk, the Eller Beck and the Wheeldale Beck, which have their juncture at a place called Beck Holes—and along these Becks are many fine fosses—the Thomasine Foss, Water Ark and Walk Mill Fosses—and then the Nelly Ayre Foss and Malyan’s Spout—a particularly impressive hundred-foot fall into the sylvan ravine.
